item_tag存的是blob类型，利用输出的是乱码。各位指点下或者给个例子？
ringa_lee
blob type, when reading, use the stream to read. blob.getbinarystream(), and then use the output stream to output
输出的是乱码。各位指点下或者给个例子？
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
blob type, when reading, use the stream to read. blob.getbinarystream(), and then use the output stream to output